Sign　language　is　communication　tool　among　the　deaf.　With　popularation　of　computer,　internet　and　other　electronic　device,　sign　language　expressed　as　3D　animation　is　more　effective　to　improve　the　exchange　and　access　information　for　the　deaf.　In　recent　years,　PDA,　mobile　phones　and　other　mobile　device＇s　users　increase　rapidly,　which　makes　3D　animation　on　the　mobile　devices　become　a　research　hotspot.　This　paper　introduces　a　Chinese　sign　language　animation　system　running　on　mobile　devices,　which　includes　three　models:　3D　virtual　human　model,　word　segment　based　on　Chinese　sign,　and　rendering.　©　2010　IEEE.